/Engine/Plugins/2D/Paper2D/Source/Paper2D/Classes/PaperSprite.h
Search for a socket (note: do not cache this pointer; it's unsafe if the Socket array is edited)
[FPaperSpriteSocket](API\Plugins\Paper2D\FPaperSpriteSocket) * FindSocket ( [FName](API\Runtime\Core\UObject\FName) SocketName )